1101562142 has 16 divisors (see below), whose sum is σ = 1685558160. Its totient is φ = 539793408.

The previous prime is 1101562117. The next prime is 1101562157. The reversal of 1101562142 is 2412651011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5534 + ... + 47262.

It is an arithmetic number, because the mean of its divisors is an integer number (105347385).

Almost surely, 2^1101562142 is an apocalyptic number.

1101562142 is a deficient number, since it is larger than the sum of its proper divisors (583996018).

1101562142 is a wasteful number, since it uses less digits than its factorization.

1101562142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41995.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1101562142 is about 33189.7897251549. The cubic root of 1101562142 is about 1032.7685413273.

The spelling of 1101562142 in words is "one billion, one hundred one million, five hundred sixty-two thousand, one hundred forty-two".